From: Tony Battersby <tonyb@cybernetics.com>
To: linux-scsi@vger.kernel.org,
"James E.J. Bottomley" <JBottomley@parallels.com>,
Jens Axboe <axboe@kernel.dk>
Cc: linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>
Subject: [PATCH] lib/scatterlist: fix memory leak with scsi-mq
Date: Thu, 23 Oct 2014 15:10:21 -0400 [thread overview]
Message-ID: <5449529D.5070804@cybernetics.com> (raw)
Fix a memory leak with scsi-mq triggered by commands with large data
transfer length.
Fixes: c53c6d6a68b1 ("scatterlist: allow chaining to preallocated chunks")
Cc: <stable@vger.kernel.org> # 3.17.x
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
---
For inclusion in 3.18 and 3.17.x.
--- a/lib/scatterlist.c 2014-10-23 13:32:27.000000000 -0400
+++ b/lib/scatterlist.c 2014-10-23 13:32:36.000000000 -0400
@@ -203,10 +203,10 @@ void __sg_free_table(struct sg_table *ta
}
table->orig_nents -= sg_size;
- if (!skip_first_chunk) {
- free_fn(sgl, alloc_size);
+ if (skip_first_chunk)
skip_first_chunk = false;
- }
+ else
+ free_fn(sgl, alloc_size);
sgl = next;
}
next reply other threads:[~2014-10-23 19:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-23 19:10 Tony Battersby [this message]
2014-10-24 9:25 ` [PATCH] lib/scatterlist: fix memory leak with scsi-mq Christoph Hellwig
2014-10-28 0:07 ` Martin K. Petersen
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